Thanks for checking her out, rhinosaur. What makes you think she's I and SP?

Just a hunch.

Some specifics, now that I think about it:
In one interview she or David says that they both like to be alone. Her body language in the first interview suggests that she is uncomfortable with all the sudden, direct attention from the interview. Her language is very concrete.

However, my intuition about type is often wrong. Moreover, it is extremely difficult to type a person based on interviews, where they are deliberately building up their image to the audience.